Add 75/21 and 3/16
1st number: 3 12/21, 2nd number: 3/16
75/21 + 3/16 is 421/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
75/21 = 75 × 16/21 × 16 = 1200/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
3/16 = 3 × 21/16 × 21 = 63/336 - Add the two like fractions:
1200/336 + 63/336 = 1200 + 63/336 = 1263/336 - 1263/336 simplified gives 421/112
- So, 75/21 + 3/16 = 421/112
In mixed form: 385/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21+6/16 75/42+3/16 75/21+3/32 75/21+9/16 75/63+3/16 75/21+3/48 75/21+15/16 75/21+3/80 75/21+21/16